Sinclair Institute Products Enhancement Ring is a soft, sturdy sleeve fits snuggly over penis shaft for a stronger, longer lasting erection. Ribbed exterior and texture adds girth for more pleasure. Second stretchy rings fits comfortably around testicles for a more powerful orgasm. Textured, touch activated clitoral vibrator adds hands free satisfaction for her. Water-resistant, removable multple speed bullet vibe can be used with system or alone. This cock ring is compatible with water based lubes. Try the Better Sex Essentials Gel Personal Lubricant. It is not recommended to be used with silicone lubes. After use, carefully wash the cock ring with mild soap and water or try the Better Sex Essentials Toy Cleaner for even quicker cleanup. Store this cock ring separately from other sex toys. Made using body safe phthalate free materials Thermoplastic Rubber TPR sleeve, cock ring, ABS plastic bullet vibrator.